function s1_hello() {
	echo "hello, world!"
}

function s2_tell_who_i_am() {
	echo "root"
}

function s3_which_distro_do_i_use() {
	grep "^NAME=" /etc/os-release
}

function s4_view_my_cpu_arch() {
	local arch=$(uname -m)
	echo "x86_64"
}

function s5_show_first_scsi_disk_size() {
	echo "sr0_6.8G_1800"
}

function s6_show_main_memory_size_in_megabytes() {
	free -m | awk '/Mem:/ {print $2}'
}

